| Helmut Röpnack | |
| Birth Date: | 23 September 1884 |
| Birth Place: | Läsikow, Ruppin, Germany |
| Position: | Inside forward, Defender |
| Nationalyears1: | 1912 |
| Nationalteam1: | Germany |
| Nationalcaps1: | 10 |
Hellmuth Adolph August "Helmut" Röpnack (23 September 1884 in Läsikow, Ruppin – 19 August 1935) was a German amateur footballer who played as an inside forward and defender, competing in the 1912 Summer Olympics.[1]
He was a member of the German Olympic squad and played one match in the main tournament as well as one match in the consolation tournament. Overall he won ten caps but couldn't secure a win with the DFB in these matches.[2]